Improvement in mechanical movements



'1. S. HUNTINGTON.

MECHANICAL MOVEMENT.

No.183,854. Patented on.s1,1a7e.

FIG. I. PIC-3.2.

, I F|G.4. FIG.6.

WiTNESSES: ofi INVENTOR.

UNITED STATES PATENT OFFICE.

THOMAS S. HUNTINGTON, OF NEW YORK, N. Y.

IMPROVEMENT IN MECHANICAL MOVEMENTS.

Specification forming part of Letters Patent No. 183,854, dated October31, 1876; application filed August 18, 1876.

To all whom it may concern:

Be it known that I, THOMAS S. HUNTING- TON, of the city, county, andState of New York, have invented an Improved Mechanical Movement, whichimprovement is fully set forth in the following specification, referencebeing had to the accompanying drawing.

This invention consists, first, in a method of retaining an oscillatingaxis and gearwheel in proper working position with acontinuously-rotating axis and gear-wheel, in such a manner that thepoints of rest in the oscillating wheel will be preserved until therotating points may be brought into proper working position for engagingwith the oscillating teeth, as will hereinafter appear. Second, theinvention also consists in the method of retaining a rotating axis andgear -wheel in a fixed position with a continuously revolving shaft, sothat the one may rest in its rotation while the other revolves, as willhereinafter appear.

Figure 1 is an elevation of two gear-wheels. Fig. 2 is a view of thesame, taken at a right angle to Fig. 1. Figs. 3, 4., 5, and 6 showmodifications of the same devices.

To illustrate this invention, the letter A represents acontinuously-revolving shaft, and B the cylinder or driving-wheelthereon. At 0 is shown a pinion upon a shaft or axis, D, which, in thiscase, is mounted upon bearings to carry it at a right angle to the axisA, or

so that the two wheels shall work at a right angle to each other. Whenit is desired to give a partial rotation to the pinion, and then let itrest and again set it in motion in the same direction, the driving-wheelB is provided with only a sufficient number of teeth, as at E, to givethe desired rotation to the pinion O, and to hold the pinion at rest andin a proper position to start again at the right time. A rib, as at F,is formed upon the circumference of the wheel B, and is so placed as toengage in a groove in the pinion in such a manner that when the lasttooth at E has acted upon the pinion the rib F enters said groove, andthereby holds the pinion from rotating, and preserves its properposition ready to engage with the first tooth at E as the driving-wheelcontinues its revolution.

Instead of pins and spur-teeth, as shown at Figs. 1 and 2, bevel ormiter-toothed wheels, as shown at Figs. 3 or 4, may be used, where alsothe pinion is represented as being held by the rib F.

At Figs. 5 and 6 a modification of the same devices is shown forproducing a reciprocating motion of the pinion, so that an arm placed onits axis, as at Or, would be caused to vibrate to and fro, and be heldat rest between the points of vibration. This is accomplished by placinga segment of teeth on the opposite side of the driving-wheel B, andbetween two segments of ribs, so that the pinion gears first into onesegment, and is there held by the first rib, and then gears into thesecond segment, which, being opposite to the first, and on the oppositeside of the pinion, reverses the pinion, which returns it to its firstposition, and holds it by the second rib until it engages again with thefirst segment of teeth, as be-.

fore. The same principle may be applied to Wheels working on shafts atother angles than right angles, as here shown, the peculiarity beingthat a rib on the driving-wheel or its shaft serves to hold the pinionat rest when not in gear.

It is evident that instead of the rib being formed on the driving-wheel,a groove may be formed thereon, and a rib may project from the pinioninto it, to hold the proper relation between the two.

Such a combination will be found very useful in the variable movementsof sewing-machines, harvesters, looms, and in all those places wheresimilar variable motions are desired.

I therefore claim As a new mechanical movement, the combination of thetoothed wheels B and G and intermediate rib and groove, in which the ribWorks for holding them in proper working position, substantially asdescribed.

THOMAS S. HUNTINGTON.

Attest JOHN W. RIPLEY, Born ELIOT.

